Car-roof



(No Model.)

G. A. ROBERTS GAR ROOF. I Patented June 4, 1889.

' UNITED STATES PATENT OFFIC GEORGE ALLEN ROBERTS, OF PADUOAH, KENTUCKY.

CAR-ROOF.

SPECIFICATION forming part of Letters Patent No. 404,735, dated une 4, 1889. Application filed August 25, 1888. Serial No. 283,807. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE ALLEN Ron- ERTS, a citizen of the United States, residing at Paducah, iuthe county of McOracken and State of Kentucky, have invented a new and useful Railroad Freight-Oar Roof, of which the following is a specification.

My invention relates to improvement in freight-car roofs, in which are used single boards with metal pans under each joint of board.

The object of the invention is to provide a roof that is less expensive and at the same time more durable and effective than any other roof that has heretofore been provided. These objects are attained by the mechanism illustrated in the accompanying drawings.

Figure 1 of the drawings shows an end view of the roof as seen when standing at the end of car after the roof has been put on, the letter A representing the board, and B the metal pan. represents metal pan as placed on roof, the lip of one pan lapping into the other. Fig. 3 represents end view of pan. Fig. 4 represents a "iew of the roof, looking at the end of boards and pan at the eaves of roof, also shows how board and pan are connected. Fig. 5 represents a full view'of the pan alone.

In all of the figures, the letterA represents the board, and the letter B represents the pan.

The boards forming this roof must be of a uniform width and thicknesssay six inches wide and one and one-fourth of an inch thick. The top side of board should be plain and smooth and the bottom side should be beveled. There should also be a saw-cutin bottom side of board to receive edge of pan, as shown in Fig. 4 of drawings. The pan is formed by bending at right angles a strip of tin, galvanized iron, or other metals, say three and one-half inches wide and turni up one-half inch on each edge. The pans must also be of a uniform width. One-half of th pans, or rather all the pans 011 one side of the roof, are formed with a lip on one end for the purpose of bending down into the other pan (which has no lip) at the top or cone of roof. \Vhen the boards and pans are placed on roof and both fastened by nailing, there should be a space of one-eighth of an inch between each two boards and over the center of the pans, in order to allow for swelling and shrinking of boards in wet or dry weather, also that there may be better ventilation to roof, enablin g it to dry more rapidly, thereby preven tin g to a great extent the decay of roof.

I claim for the herein-described roof over all roofs cheapness and durability. It is cheaper in that it requires about one-third less lumber of the same grade used in other wooden roofs and about one-half the labor to build it. It is more durable in that it is a single roof, and, as it will not hold the water, it is less liable to decay.

The above roof can be built with or without batting over joint or seams, as the builder prefers.

I claim 7 In a roof, the combination of the boards having their lower edges beveled away so as to form a chamber, with the pans B, having their edges turned up at right angles and made to fit in grooves formed in the under side of the boards, substantially as shown.

GEORGE ALLEN ROBERTS.

lVitnesses:

CHARLES B. OGBURN, ROBERT MAOAN. 

